Apple’s AirPower charging mat may be a no-show, but that doesn’t mean you’re out of luck if you want a multi-device charger from a big-name brand. Entries at both the FCC and the Wireless Power Consortium have revealed that AT&T is working on the Power Drum, a portable wireless charger and battery bank meant to top up both an Apple Watch and a recent iPhone (or really, any Qi-compatible smartphone). While the concept isn’t completely novel, it’s very compact — the biggest issue is the 3,000mAh battery, which could handle an overnight stay but not much more.